Sewing-machine horn.



No. 663,|00. Patented Dec; 4. I900.

J. H. RICHARDSON.

SEWING MACHINE HORN.

(Appl cat on fll d Jun 14 1899 Renewed Am- 28 1900) (No Model.)

\X/ITNEEEEEI INYENTU TATES JOHN H. RICHARDSON, OF LAWRENCE, MASSACHUSETTS.

SEWING-MACHINE HORN.

SPECIFICATION forming part of Letters Patent No. 663,100, dated December 4, 1900.

Application filed June 14, 1899. Renewed April 28, 1900. serial No. 14,759. (No modeld ib aZZ whom it may concern:

Be it known that I, J OHN H. RICHARDSON, of Lawrence, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Sewing-Machine Horns, of which the following is a specification.

This invention relates to a sewing-machine horn having a rotary whirl which is geared to and rotated by an inclined shaft journaled in the horn, the shaft having a pinion at its upper end which imparts motion to the whirl. I-leretofore the thread which passes to the whirl from a tension device below the tip of the horn has been guided outside of and below the shaft and below the pinion thereon, the thread-guide required bythis construction requiring a greater thickness of the horn at its tip than is desirable.

My invention has for its object to reduce the thickness of the horn to the minimum by dispensing with thread-guiding means below the whirl-operating shaft and to utilize the said shaft and its pinion not only as a means for rotating the whirl, but also for guiding the thread thereto, so that no extra space or thickness is required in the horn-tip for the thread-guide.

The invention consists in the improvements, which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a sectional view of a portion of a sewing-machine horn provided with my improvement. Fig. 2 represents a top view of the same. Fig. 3 represents a perspective view of the tip of the horn with the cap portion removed. Fig. 4 represents a view similar to Fig. 1, showing a modification. Fig. 5 represents a sectional view of the whirl, showing the inclination of the needle'orifice therein.

The same letters of reference indicate the same parts in all the figures.

In the drawings, a represents a sewing-inachine horn, in the tip a of which isrotatively mounted the Whirl b. On the whirl are formed pinion-teeth b, constituting a pinion.

0 represents an inclined tubular shaft journaled in the horn and carrying at its upper end a pinion d, which is preferably made in a separate piece and attached rigidly to the shaft. If desired, however, the pinion-teeth may be integral with the shaft, its teeth being formed on the end of the shaft. The pin ion (Z when rotated by the shaft 0 imparts motion to the whirl through an intermediate pinion c, mounted on the horn, as shown in Fig. 1, or directly by meshing with the pinionteeth b thereon, as shown in Fig. 4.

The tubular shaft 0 is utilized as aguide for the thread. The thread-passage of the tubular shaftis extended through the pinion (1, its delivering end ,being surrounded by the circle of pinion-teeth. It will be seen that thethread passes directly and in a nearly straightcourse from the interior of the shaft 0 to the thread-passage in the whirl, the shaft and its pinion constituting the sole means of guiding the thread.

' The horn-tip a (shown in Figs. 1, 2, and 3) is provided with seats 17 and e for the pinions b and e, a screw-hole f to receive the screw-stud g on which the pinion e rotates, and a shoulder a adjacent to the seat 6 The cap 00*, which contains the needle-hole and secures the whirl and the intermediate pinion in place, is formed at one end to abut against the shoulder a and is provided with a screw-hole arranged to register with the screw-hole f and to receive the outer portion and head of the stud g. The cap a is therefore held securely in place by the shoulder a and the stud g.

The orifice b formed in the whirl for the reception of the needle, as shown in Fig. 5, is inclined, the inclination of said orifice being such that the side nearest the threadpassage 19 conforms approximately to the adjacent surface of the needle, thus permitting a greater thickness of metal between the lower portions of the thread-passage b and needleorifice 19 I claim- 1. An inclined sewing-machine horn having a Whirl mounted to rotate in a substan' tially horizontal plane, a hollow rotary shaft within the horn and having a'pinion at its upper end provided with the thread-passage, said pinion being operatively connected with the whirl and serving not only to rotate the whirl but also to guide the thread thereto, both the shaft and the whirl being located entirely within the horn, whereby the thread in its passage to the Whirl, will be also re- Lure or inclination of the needle at the pointed tained entirely Within the horn and away from end of the latter. possibility of abrasion by any portion of a In testimony whereof Ihave affixed my sigshoe placed onsaid horn. nature in presence of two witnesses.

5 2. A sewing-machine comprising a whirl JOHN H. RICHARDSON.

having a needle -orifi'ce b having parallel Witnesses:

walls which are inclined, one side of the ori- C. F. BROWN, fice conforming approximately to the curva- A. D. HARRISON. 

